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The reaction of cyclopentaphosphine cyclo‐(P5Ph5) (1) with ketones (acetone and cyclooctanone) in the presence of [Mo(CO)4(cod)] (cod=cycloocta‐1,5‐diene) led to air‐stable trinuclear complexes in which the bis‐phosphanido ligands (PPh−PPh−PPh−PPh−CMe2O−PPh)2− (complex 2) and (PPh−PPh−PPh−PPh−C(CH2)7O−PPh)2− (complex 3) bridge a Mo(CO)3−Mo(CO)3 unit. This extends the reaction of 1 with transition metal carbonyl complexes to further substrates and represents the first examples of insertion of carbonyl compounds into the P−P bond of cyclic oligophosphorus compounds. Complexes 2 and 3 have been characterized by 31P NMR spectroscopy and single crystal X‐ray diffraction. Furthermore, the thermal properties of the obtained complexes have been studied by differential scanning calorimetry (DSC) and fast scanning calorimetry (FSC). [ABSTRACT FROM AUTHOR]

The reaction of cyclopentaphosphine cyclo-(P 5 Ph 5 ) (1) with ketones (acetone and cyclooctanone) in the presence of [Mo(CO) 4 (cod)] (cod=cycloocta-1,5-diene) led to air-stable trinuclear complexes in which the bis-phosphanido ligands (PPh-PPh-PPh-PPh-CMe 2 O-PPh) 2- (complex 2) and (PPh-PPh-PPh-PPh-C(CH 2 ) 7 O-PPh) 2- (complex 3) bridge a Mo(CO) 3 -Mo(CO) 3 unit. This extends the reaction of 1 with transition metal carbonyl complexes to further substrates and represents the first examples of insertion of carbonyl compounds into the P-P bond of cyclic oligophosphorus compounds. Complexes 2 and 3 have been characterized by 31 P NMR spectroscopy and single crystal X-ray diffraction. Furthermore, the thermal properties of the obtained complexes have been studied by differential scanning calorimetry (DSC) and fast scanning calorimetry (FSC)., (© 2023 The Authors. ChemPlusChem published by Wiley-VCH GmbH.)

A luminescent zinc-based metal-organic framework (MOF; 1) was synthesized from a highly conjugated tridentate ligand, 1,3,5-tris[(1E)-2'-(4''-benzoic acid)vinyl]benzene. X-ray single crystal analysis reveals the organization of 1 in a three-dimensional porous framework. Thermogravimetric analysis shows that 1 has a good thermal stability, and resists decomposition up to 420 °C. The removal of the solvent molecules from the cavities leads to a temporary loss of crystallinity, which can be regained by heating the MOF in diethylformamide, the solvent used for the synthesis, as shown by powder X-ray diffraction. In addition, 1 shows luminescent features influenced by the chemical environment, making it suitable as optical sensor. Detection of methanol with a turn-on effect was possible in low concentration in mixtures with water (50 μL/3 mL and 10 μL/3 mL) and as vapor., (© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)